Getting all kinds of differnt codes

Question

2010 6.7
Had to do the head gasket.

Upon putting all back together & starting it, I got the cam shaft codes. Replaced both of them.

Still get the code here & there. Now I get p0087 p0192 p0254

when it does start it sputters & has white smoke

Answer 1

P0087 Fuel rail pressure too low

P0192 Fuel pressure sensor too low

P0254 Injection pump fuel control circuit high

These code are fuel related, low fuel pressure somewhere and this incude the fuel injector. If there is a no start you set a cam code, P0254 suspicious here . P0192 and P0087 if the actual fuel pressure is low you would set a P0192 and P0087, But not a P0254, circuit high code there a disconnection there, ground wire are important.

There a brown orange wire that goes from the ECM this is the sensor ground the fuel rail pressure sensor and fuel pressure sensor.  if that is faulty it set a P0192 and P0087. Your disconnected somewhere particular with a ground.